Furnace wall



July 24, 1923.

M. LIPTAK- 4 FURNACE WALLv July 24, 1923. ,463,046

M. LIPTAK FURNACE WALL Filed Sept. '7, 1920 3 Sheets-Sheet 5 4 Y Ai 5y /f/.S Arme/m5 Fatented July 24, i923.

einen UNlTED l STTES PATENT OFFICE.

MICHAEL LIPTAK, OF ST. PAUL, MINNESOTA, ASSIGNOR TO A. P. GREEN FIRE BRICK COMPANY, OF MEXICO, MISSOURI, A CORPORATION OF MISSOURI.

FURNACE WALL.

Application led September 7, 1920. Serial No. 408,699.

To all whom t may concern:

Be it known that I MICHAEL LIPTAK, a citizen of the United States, residing at St. Paul, in the county of Ramsey and State of Minnesota, have invented certain new and useful Improvements in Furnace Walls; and I do hereby declare the following to be a full, clear, and exact description of thev invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention has for its object to improve the construction of furnace walls, and to such ends, enerally stated, the invention consists ofv-t e novel, construction and combination of parts hereinafter described and defined in the claims. In many respects, the present invention is in the nature of an improvement on, or modification of the furnace wall disclosed and claimed in my pending application 394,112, filed of date, July 6th, 1920, but in some respects, the present invention is independent of the said earlier application, in that it involves broadly new features not therein disclosed. f Particularly, this invention relates to wall structures Vcomprising outer or permanent walls, and inner, or replaceable walls, which latter are subjected to intense heat, so that they will burn out, at least, in placesnand require replacement or repair many tlmes during the life of the outer or permanent wall. This invention makes replacement and repair of the inner wall a comparatively simple and easy matter, and reduces to a minimum the cost of maintenance of furnace walls. In the accompanying drawings which illustrate the invention, like characters indicate like parts throughout the several views.

Referring to the drawings:

Fig. 1 is a fragmentary perspective illustrating a furnace wall, designed in accordance with my invention.

Fig. 2 is a vertical transverse section, taken on the line 2-2 of Figure 1.

Fig. 3 is a horizontal section on the line 3--3 of Figure 1.

Fig. 2A is a view corresponding to Figure 2, but illustrating a slightly modified construction of the wall.

Fig. 4 is a perspective showing one of the box-like metallic anchors, of the outer wall looking at the inner face thereof.y

Fig. 5 is a perspective 0f the same elellied construction of t e box like anchor.

Fig. 8 is a perspective illustrating a modified arrangement in which several box-like anchors are put together in a way different from all the other illustrations.

Fig. 9 is a perspective showing one of the anchoring tiles of the inner wall.

Fig. 10 is a perspective lshowing a key tile for cooperation with each anchoring tile shown in Figure 9.

The outer or permanent wall, in this preferred arrangement illustrated in the drawings, comprises horizontally extended wall sections made Vu of commercial bricks 11, laid in a multiplicity of layers, and between the wall sections of commercial brick, interposed layers made up in whole or in part of metallic anchors. These metallic anchors may take different forms but in the preferred arrangement they are box-like channels or beams, preferably cast and extended from the one buckstay to the other. In the drawings the buckstays 12, are shown as of standard or well known construction, and each comprising a pair of channel beams lset back to back but spaced slightly apart.

In the preferred arrangement, as above indicated, the box-like metallic anchors are indicated as entireties by the numeral 13 and are long enough to extend horizontally from the one buckstay to the other. At their abutting ends the anchoring boxes 13 are preferably rigidly connected by short nut equipped bolts 14, passed through the end walls thereof.

At their outer sides adjacent to the buckstays the anchor boxes 13 are formed with lshaped slots 15 which extend to enlarged bolt head passages 16. These anchoring boxes are laid end to end on top of and underlying brick wall section 11 and they are arranged to be securely anchored to the buckstays 12, b nut equipped bolts 17. The heads of these olts 17 may be inserted into the 'IF-shaped slots 15 through the bolt head passages 16.

Close adjustments or accurate spacing of the buckstays are not necessary because the bolts 17 can slide horizontally in the slots 15 and vertically in the spaces between the channels et the buckstays, until they are tightened when in inal position.

When the anchoring boxes are made very long they may be reinforced at the intermediate portions by vertical Webs 18. 'lhe anchoring boxes are in a direction transversely ot the wall, considerably narrower than the outer wall brick work or masonry sections 11, and at their inner faces they are open but are provided at the inner edge of their bottom plates with up standing loch flanges 19, for an important purpose which will presently a pear.

The inner wal is made up of horizontal wall section ot lire brick masonry 20, laid in a multiplicity of horizontalcourses, and between these lire brick wall sections, 'horizontal layers of anchoring tiles 21 and key tiles 22. 'lhe anchoring tiles 21 are ot such length that they extend entirely through the inner wall and tar into the anchoring boxes 13- ot the outer wall. ln their bottoms the anchoring tiles 21 are provided with lock notches 23, that adords shoulders that interloch with the lock {langes 19 of the loch boxes 13, see particularly Figure 2, by reference to which it will be noted that the notches 23 are located a very considerable distance from extreme outer or box-engaging ends ot said tiles. Also it will be noted that the lrey tiles 22 when inserted into the anchor box positively hold the underlying anchoring tiles down and interloched to the box ila-nges 19.

Preferably the tiles 21 are laid side by side, and the superimposed lrey tiles are laid side by side so that they together form a shell interloclred to and projecting from the .Y anchoring boxes 13. Again by referring to Figure 2 it will., be noted that considerable portions ol the anchoring tiles 21 beyond the notches 23 are rmly seated on the inner portion ot the upper surface ot the underlying outer wall section 11. rlhis givesthe shelf formed by the tiles 21 and 22 a long bearing in the outer wall supported to points inward ot the notches 23, which latter ot course somewhat weaken the tiles 21, where they are formed. 'lhe arrangement described also incorporates the hey tiles into the shelf structure in such manner that their load carrying strength is contributedto the shell structure.

The lowermost re brick inner wall Amasonry section 20 is built upon the foundation, while upper masonry met-ions 20 are built upon shelves adorded by tiles 21 and 22, so that any one of the said masonry sections 20 maybe removed and replaced in whole or in part without disturbing the outer or permanent wall, and when desired without disturbing the shelit structures.

When the tiles 21 and or either thereof incense require replacing, that is also an easy matter, since it is only necessary rst to remove an overlying hey tile, 22, and then to remove the underlying anchorin tile, by hrstliiting the same ed -from t e loch dange 19, then removing it endwise. lt of course goes without saying that the anchoring tiles 21 are anchored to the anchor boxes after they have been properly inserted by dropping the same until their notches 23 engage the lock danges 1S).

'lhe construction concluded in Figure 2A is like that illustrated in Figures 1 and 2, except that the tiles 21 and 22 are made a little longer so that the inner and outer walls are spaced, either to aord an air space or to adord a space that is filled with insulating material 241.

'lhe anchor box 13,`sl1own in Figure 6, is like that shown in Figure 5, and certain other views, except that the 'lf-shaped bolt slot 15, extends from end to end of said box and terminates in bolt head entrance passages 16a.

'lhe anchor box shown in Figure 7, is like that shown in Figure 6 except that the T- shaped bolt slot 15b is short, extends only through the intermediate rtions ot vsaid box and terminates in bo t head entrance passages 16".

rlhe anchor boxes shown in Figure 8, are like those illustrated in Figure 6, except that they are shorter, so as to leave spaces therebetween for short cast metal anchor boxes 13a, that are like the boxes 13 ot this view lill@ Figure 8, except that the bolt slots and en trance passages are omitted at the bach thereof.

Some furnace walls are so built that they do not require buchstays and in such walls the anchor boxes would preferably be termed, with plain smooth outside walls or backs. @t course from what has been said it is understood that the metallic anchors in the outer wall may take many dillerent forms and that when made ot box-lilac formation they may be made ot any desired length and applied in diderent ways.

What l claim is:

1. A wall structure comprising a permanent outer wall and a replaceable inner wall, said outer wall having metallic anchor boxes built therein, and said inner wall having built therein anchoring tiles with ends that project into and are interloched to said anchor boxes.

2. A wall structure comprising a permanent outer wall and a replaceable inner wall, said outer wall having metallic anchor boxes built therein, said inner wall having built therein anchoring tiles with ends that project into and are interloched to said anchor boxes, by movements transversely ot their length, and key blocks inserted into said boxes and against said anchor tiles, for

positively holding the same interlocked to said boxes and forming elements of the inner Wall.

3. A Wall structure comprising aI permanent outer Wall and a replaceable inner Wall, said outer Wall including box like metallic anchors built therein, and said inner Wall including anchoring tiles and key tiles, the former having interlocking engagement with said anchor boxes, and the latter holding said anchoring tiles interlocked to said anchor boxes.

4. A Wall structure comprising a permanent outer wall and a replaceable inner Wall, said outer Wall including box like metallic anchors built therein, and said inner wall including anchoring tiles and key tiles, the former having interlocking engagement with said anchor boxes, and the latter holding said anchoring tiles interlocked, to said anchor boxes, said anchoring tiles and key tiles forming a shelf that supports a masonry section of said inner Wall.

5. A Wall structure comprising a permanent main Wall and a replaceable inner Wall, said main Wall having pockets formed therein and said inner Wall having built therein anchoring tiles with projecting ends that are detachably anchored in the pockets of the said main Wall and afford supporting shelves for elements of said inner Wall.

6. A Wall structure comprising a permanent main Wall and a replaceable inner Wall, said main Wall having pockets lformed therein and said inner wall having built therein anchoring tiles with projecting 'ends that are detachably anchored in the pockets of the said main Wall and afford supporting shelves for elements of said inner wall, said inner Wall further including belts of fire brick built on the said shelf-forming anchoring tiles.

7. A Wall structure comprising a permanent main Wall and a replaceable inner Wall, said main Wall having pockets formed therein and said inner wai-ll having built therein anchoring tiles with projecting ends that are projected into the pockets of said main Wall and have interlocking engagement therewith, key blocks also extended from said replaceable Wall into said pockets and holding said anchoring tiles intel-locked Within said pockets, said anchoring tiles affording supporting shelves for elements of said inner Wall..

In testimony whereof I affix my signature.

MICHAEL LIPTAK. 

